CLI Guide

debug spanning-tree
Enable debugging of the spanning tree protocol and view information on the protocol.
Syntax
debug spanning-tree {stp-id [all | bpdu | config | events |
exceptions | general | root] | protocol}
To disable debugging, use the no debug spanning-tree command.
Parameters
stp-id Enter zero (0). The switch supports one spanning tree group
with a group ID of 0.
protocol Enter the keyword for the type of STP to debug, either mstp,
pvst, or rstp.
all (OPTIONAL) Enter the keyword all to debug all spanning
tree operations.
bpdu (OPTIONAL) Enter the keyword bpdu to debug bridge
protocol data units.
config (OPTIONAL) Enter the keyword config to debug
configuration information.
events (OPTIONAL) Enter the keyword events to debug STP
events.
general (OPTIONAL) Enter the keyword general to debug general
STP operations.
root (OPTIONAL) Enter the keyword root to debug STP root
transactions.
Command Modes EXEC Privilege
Command History
This guide is platform-specific. For command information about other platforms,
see the relevant Dell Networking OS Command Line Reference Guide.
Version Description
9.8(2.0) Introduced on the S3100 series.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
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Spanning Tree Protocol (STP)